126 	int uffd;  in test_uffd_api()  local
132 		uffd = uffd_open_dev(UFFD_FLAGS);  in test_uffd_api()
134 		uffd = uffd_open_sys(UFFD_FLAGS);  in test_uffd_api()
135 	if (uffd < 0) {  in test_uffd_api()
143 	if (ioctl(uffd, UFFDIO_API, &uffdio_api) == 0) {  in test_uffd_api()
151 	if (ioctl(uffd, UFFDIO_API, &uffdio_api) == 0) {  in test_uffd_api()
159 	if (ioctl(uffd, UFFDIO_API, &uffdio_api)) {  in test_uffd_api()
166 	if (ioctl(uffd, UFFDIO_API, &uffdio_api) == 0) {  in test_uffd_api()
173 	close(uffd);  in test_uffd_api()
297 static int pagemap_test_fork(int uffd, bool with_event, bool test_pin)  in pagemap_test_fork()  argument
299 	fork_event_args args = { .parent_uffd = uffd, .child_uffd = -1 };  in pagemap_test_fork()
356 	if (uffd_register(uffd, area_dst, nr_pages * page_size,  in uffd_wp_unpopulated_test()
363 	wp_range(uffd, (uint64_t)area_dst, page_size, true);  in uffd_wp_unpopulated_test()
368 	wp_range(uffd, (uint64_t)area_dst, page_size, false);  in uffd_wp_unpopulated_test()
373 	wp_range(uffd, (uint64_t)area_dst, page_size, true);  in uffd_wp_unpopulated_test()
388 	wp_range(uffd, (uint64_t)area_dst, page_size, true);  in uffd_wp_unpopulated_test()
403 	if (uffd_register(uffd, area_dst, nr_pages * page_size,  in uffd_wp_fork_test_common()
411 	wp_range(uffd, (uint64_t)area_dst, page_size, true);  in uffd_wp_fork_test_common()
414 	if (pagemap_test_fork(uffd, with_event, false)) {  in uffd_wp_fork_test_common()
445 	if (pagemap_test_fork(uffd, with_event, false)) {  in uffd_wp_fork_test_common()
452 	wp_range(uffd, (uint64_t)area_dst, page_size, false);  in uffd_wp_fork_test_common()
462 	if (uffd_unregister(uffd, area_dst, nr_pages * page_size))  in uffd_wp_fork_test_common()
483 	if (uffd_register(uffd, area_dst, page_size, false, true, false))  in uffd_wp_fork_pin_test_common()
490 	wp_range(uffd, (uint64_t)area_dst, page_size, true);  in uffd_wp_fork_pin_test_common()
500 		uffd_unregister(uffd, area_dst, page_size);  in uffd_wp_fork_pin_test_common()
504 	if (pagemap_test_fork(uffd, with_event, false)) {  in uffd_wp_fork_pin_test_common()
517 	if (pagemap_test_fork(uffd, with_event, true)) {  in uffd_wp_fork_pin_test_common()
524 	if (uffd_unregister(uffd, area_dst, page_size))  in uffd_wp_fork_pin_test_common()
567 	if (uffd_register(uffd, area_dst_alias, nr_pages * page_size,  in uffd_minor_test_common()
703 						if (copy_page(uffd, offset, wp))  in faulting_process()
708 						wp_range(uffd,  in faulting_process()
773 	fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK);  in uffd_sigbus_test_common()
775 	if (uffd_register(uffd, area_dst, nr_pages * page_size,  in uffd_sigbus_test_common()
827 	fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK);  in uffd_events_test_common()
828 	if (uffd_register(uffd, area_dst, nr_pages * page_size,  in uffd_events_test_common()
918 uffd_register_detect_zeropage(int uffd, void *addr, uint64_t len)  in uffd_register_detect_zeropage()  argument
922 	if (uffd_register_with_ioctls(uffd, addr, len, true,  in uffd_register_detect_zeropage()
935 	has_zeropage = uffd_register_detect_zeropage(uffd, area_dst, page_size);  in uffd_zeropage_test()
938 		uffd_register_detect_zeropage(uffd, area_dst_alias, page_size);  in uffd_zeropage_test()
940 	if (do_uffdio_zeropage(uffd, has_zeropage))  in uffd_zeropage_test()
945 	if (uffd_unregister(uffd, area_dst, page_size))  in uffd_zeropage_test()
948 	if (area_dst_alias && uffd_unregister(uffd, area_dst_alias, page_size))  in uffd_zeropage_test()
954 static void uffd_register_poison(int uffd, void *addr, uint64_t len)  in uffd_register_poison()  argument
959 	if (uffd_register_with_ioctls(uffd, addr, len, true,  in uffd_register_poison()
967 static void do_uffdio_poison(int uffd, unsigned long offset)  in do_uffdio_poison()  argument
976 	ret = ioctl(uffd, UFFDIO_POISON, &uffdio_poison);  in do_uffdio_poison()
1002 		copy_page(uffd, offset, false);  in uffd_poison_handle_fault()
1004 		do_uffdio_poison(uffd, offset);  in uffd_poison_handle_fault()
1016 	fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK);  in uffd_poison_test()
1018 	uffd_register_poison(uffd, area_dst, nr_pages * page_size);  in uffd_poison_test()
1076 	ret = uffd_register_with_ioctls(uffd, area_dst, page_size,  in do_register_ioctls_test()
1107 	if (uffd_unregister(uffd, area_dst, page_size))  in do_register_ioctls_test()